Electric field between plates of capacitor is

Capacitance of capacitor is increased by

The electric field intensity between plates of capacitor is

Energy stored in a capacitor of capacitance 6 μ F having charge on its plate 6 μ C is

When a number of capacitors are connected in series between two points, all the capacitors possesses same

On reducing potential across a capacitor, its capacitance

A100 Hz a.c. is flowing in a 14 mH coil. The reactance of the coil is

In a pure inductive circuit, resistance to the flow of current is offered by

In an inductive circuit, by what value of phase angle does alternating current legs behind e.m.f.?

How much inductance should be connected to200 V, 50 Hz a.c. supply so that a maximum current of 0.9 A flows through it?

The maximum value of current wheninductance of 2 H is connected to 150 volt, 50 Hz supply is

The value of total resistance of the wires is

The line power loss in the form of heat is

How much power must the plant supply, assuming there is negligible power loss due to leakage?

The voltage drop in the power line is

The total Value of voltage transmitted from the plant is

A moving coil galvanometer is an instrument which

To make the field radial in a moving coil galvanometer

When a magnetic field is applied on a stationary electron, it

A proton is projected with a uniform velocity 𝒗⃗ along the axis of a current carrying solenoid, then

A charged particle experiences magnetic force in the presence of magnetic field. Which of the following statement is correct?

A charge q moves with a velocity 2 m/s along x-axis in a uniform magnetic field 𝐵⃗ =(𝑖̂ + 2𝑗̂+ 3𝑘̂), then charge will experience a force

A beam of positively charged particles moving along +x axis, experience a force in +y direction due to a magnetic field. The direction of magnetic field is

Unit of magnetic flux density is :-

A charged particle is moving with velocity v under the magnetic field B. The force acting on the particle will be maximum if:-

The radius of circular loop is r and a current i is flowing in it. The equivalent magnetic moment will be:-

A magnetic field of 5.0 × 10–4 T just perpendicular to the electric field of 15 kV/m in their effect an electron beam passes undeflected and perpendicular to both of them. The speed of the electrons is:-

A charged particle moves through a magnetic field perpendicular to its direction. Then

If resistance of a galvanometer is 6 Ωand it can measure a maximum current of 2 A. Then required shunt resistance to convert it into an ammeter reading up to 6 A, will be

A galvanometer can be changed into voltmeter by providing

If the number of turns in a moving coil galvanometer is increased, its current sensitivity

A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected along the direction of the fields with a certain velocity, then

If a current is passed in a spring, it

A galvanometer acting as ammeter will have

Biot-Savart law indicates that the moving electrons with velocity (v) produce a magnetic field B such that

If we double the radius of a coil keeping the current through it unchanged, then the magnetic field at any point at a large distance from the centre becomes approximately

A magnetic field

A current of 10 A is flowing in a wire of length 1.5 m. A force of 15 N acts on it when it is placed in a uniform magnetic field of 2 T. The angle between the magnetic field and the direction of the current is

Wire in the form of a right angle ABC, with AB=3cm and BC = 4cm, carries a current of 10A. There is a uniform magnetic field of 5T perpendicular to the plane of the wire. The force on the wire will be:-

A rectangular coil 20 cm × 20cm, has 100turns and carries a current of 1A. It is placed in a uniform magnetic field0.5T with the direction of magnetic field parallel to the plane of the coil. The magnitude of the torque required to hold this coil in this position is:-